H Chemistry: Unit 5

process where atoms are rearranged to form new substances

mathematical expression of a chemical reaction

chemical equation where the compound or element names are used

chemical equation where symbols are used to represent chemical species

chemical equation that uses symbols and coefficients to completely describe a chemical reaction

reaction where the product is more complex than the reactants

reaction where the reactant is more complex than the product

exothermic reaction where 02 is a reactant

CO2 + H2O

reaction where an element will replace another element in a compound

list of elements in order of reactivity; if an element is above another, then it will replace it in a compound

reaction where ions are exchanged forming a gas, a salt, water, or a precipitate

ppt; solid that comes out of a solution

mol; SI unit for an amount of something

6.022 x 10^23

mass in grams of 1 mole of any substance

ratio of the mass of an element to the mass of the compound it is in; expressed as a percentile

chemical formula that has elements in the smallest whole number ratios

molecular formula where the actual number of atoms in the compound is expressed

ionic compound loosely bonded to water molecules

hydrate after the water has been removed

before heating - after heating

after heating - crucible